A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 6650-01-440-2617
NSN 4140-00-990-0984
NSN 6105-01-443-8388
NSN 7035-00-849-5526
NSN 5915-01-139-5441
NSN 6150-00-724-9669
NSN 6135-01-623-2970
NSN 6610-01-630-5515
NSN 6135-01-604-8739
NSN 6620-01-352-5640
NSN 4140-00-678-8443
NSN 5975-01-113-6375